---
title: "Complete Breakdown of Import and Export Customs Declaration Process: 8 Key Steps from Document Preparation to Customs Release - Zhongshen Trading China"
description: "Against the backdrop of increasingly complex international trade rules and customs supervision system in 2026，import and export customs declaration is far more than just filling out a form. It is directly related to customs clearance efficiency of goods，compliance cost and capital safety of enterprises. This article systematically sorts out the complete chain of customs declaration business from preliminary preparation to final release，and analyzes the objectives and potential risks of each link..."
url: "https://www.sh-zhongshen.com/en/news/import-export-customs-clearance-process-key-steps.html"
language: "en"
type: "Article"
category: "Industry News"
datePublished: "2026-08-22"
dateModified: "2026-08-22"
brand: "Zhongshen Trading China"
image: "https://cndpic.sh-zhongshen.com/uploads/tradepics/juuptconAtbde.webp"
---

# Complete Breakdown of Import and Export Customs Declaration Process: 8 Key Steps from Document Preparation to Customs Release

Customs declaration is the legal and technical threshold for goods crossing national borders,and also one of the most professional links in the foreign trade compliance chain.A successful customs declaration means that goods have obtained legal entry-exit status,so that subsequent transportation,foreign exchange collection and tax refund can proceed smoothly.On the contrary,any negligence may lead to goods detention,extra costs,and even administrative penalties imposed by the customs.This article divides customs declaration work into four closely connected stages,and explains the specific value provided by professional agents in each link.

## Stage 1: Preliminary Preparation and Document Review

![20-Year Customs Affairs Perspective: Zhongshen Elaborates on Customs Declaration Strategy Selection Under Different Trade Methods](https://cndpic.sh-zhongshen.com/uploads/tradepics/juuptconAtbde.webp)

The goal of this stage is to "verify the identity" of the goods before official declaration,prepare all legal documents,and lay a solid foundation for subsequent operations.The root cause of many customs clearance delays is actually buried before declaration.

Key actions usually include commodity classification,confirmation of regulatory conditions,and collection and sorting of documents.Operators need to determine the accurate HS code of the goods in the *Harmonized Commodity Description and Coding System* based on the material,function,purpose and other information of the goods.This work directly determines the applicable tariff rate,export tax refund rate,and whether regulatory documents are required.For example,for a batch of industrial mixers exported by Mr.He’s company,whether it is classified as machinery parts or general machinery,the corresponding regulatory requirements and tax rates differ significantly.

Common problems are mainly concentrated in classification disputes and missing documents.Enterprises’ self-classification often relies on experience,and it is easy to deviate due to insufficient understanding of the rules.In terms of documents,non-recurring documents such as certificate of origin,statement for specific use,and brand authorization letter may be missed.

The value of Zhongshen at this stage is reflected in proactive intervention and professional pre-review.After receiving the order,we will immediately conduct pre-classification based on the product information provided by the customer and provide a detailed document list.For Mr.He’s mixers,our customs experts will review the classification decisions of similar cases and confirm the technical parameters with the customer to ensure the accuracy of the HS code.At the same time,the system will remind the export license or quality inspection requirements that may be involved under this HS code,and remind customers to handle them in advance to avoid the passive situation of "goods arrive at the port,but certificates are not ready".

## Stage 2: Accurate Completion of Customs Declaration Form and System Declaration

The goal of this stage is to convert the information prepared in the early stage into customs-recognized electronic data accurately,completely and timely,and complete declaration and tax payment.Every piece of data on the customs declaration form bears legal responsibility.

Key actions include filling in the customs declaration form,system submission,and tax calculation and payment.There are dozens of declaration elements,including specification and model,transaction terms,freight and insurance premium,container number,etc.It must be consistent between documents and between documents and goods.Ms.Shen once feedback that the most troublesome part of her self-declaration is the apportionment calculation of freight and insurance premium,and how to accurately reflect the price composition of "CIF" or "FOB".

Common problems include inaccurate declaration,logical errors and input negligence.For example,misinput "piece" as "kilogram",wrong price currency,or wrong container number,all of these will lead to system rejection or inspection.

![20-Year Customs Affairs Perspective: Zhongshen Elaborates on Customs Declaration Strategy Selection Under Different Trade Methods](https://cndpic.sh-zhongshen.com/uploads/tradepics/JvDpfLwe5QgPD.webp)

- First,data logical contradiction,such as total price does not match the product of unit price and quantity.
- Second,declaration elements do not meet the specifications,such as no declaration of brand type,or the description of specification and model is too simple.
- Third,ignoring related declaration,such as failure to actively declare royalty involved.

Zhongshen’s solution is standardized process and double verification.We use a customs data template optimized over many years to guide customers to fill in standardly.After entering the system,a special auditing post conducts cross-check on key data,and uses the system’s logical verification function to check for contradictions.For Ms.Shen’s concerns,we will accurately calculate and fill in various fees according to the contract,invoice and logistics documents provided by her,to ensure that the declared price complies with the customs valuation regulations.Our system is directly connected to the customs declaration platform,which can stably and efficiently process declaration instructions and track the receipt status in real time.

## Stage 3: Customs Document Examination and Inspection Response

After the declaration data enters the customs system,it will go through risk identification and examination.The goal of this stage is to actively cooperate with customs supervision,communicate and explain the questions effectively,and ensure the smooth customs clearance of compliant goods.

The key action is to respond to the customs’ document examination questions or control inspection instructions.The customs may ask for supplementary materials or explanations due to doubts about classification,price or origin,and may also conduct physical inspection of goods randomly or based on risk control.A batch of chemical products of Mr.Xiao was once required by the customs for inspection and sent to the laboratory for composition testing because the declared name was too general.

The common problem is untimely response or improper handling.After an enterprise receives the *Customs Inspection Notice* or *Supplementary Material Notice*,slow preparation due to unfamiliarity with the process will prolong the customs clearance time.During on-site inspection,if the goods cannot be clearly explained to the customs officer,it may also lead to unfavorable identification.

Zhongshen’s value is reflected in on-site coordination and professional response.We have on-site operation teams distributed in major ports,which can quickly respond to inspection instructions and arrive at the supervision area in advance to cooperate with unpacking.For Mr.Xiao’s chemical products,we not only helped him prepare detailed Safety Data Sheet (MSDS) and component analysis reports,but also gave professional explanations to customs officers at the inspection site,clarified the commodity properties,and avoided document amendment and delay caused by classification problems.For document examination questions,we can accurately understand the intentions of customs officers,guide customers to issue explanations or certification documents that meet the requirements,and conduct effective communication.

## Stage 4: Customs Clearance & Release and Document Archiving

This is the final stage of the customs declaration process.The goal is to safely obtain the goods release certificate,complete the sorting and archiving of all customs declaration documents,and ensure the smooth connection of subsequent foreign exchange,tax refund and other links.

Key actions are to obtain and transmit release information,and systematically archive documents.After customs release,an electronic release notice will be generated.The cargo owner or freight forwarder needs to use this to handle the pickup or loading procedures.At the same time,the complete set of customs declaration materials (including customs declaration form,contract,invoice,packing list,transportation documents,etc.) needs to be properly stored for subsequent inspection or tax refund.

Common problems are disjointed document flow and chaotic archiving.General Manager Deng once encountered that the goods had already arrived at the port,but due to poor internal communication,the release notice was not transferred to the warehouse in time,resulting in extra storage fees.In addition,it is even more troublesome when the corresponding tax refund copy of the customs declaration cannot be found during tax refund.

Zhongshen eliminates such problems through process management.We have established a one-stop tracking platform,where customers can query the customs declaration status in real time,and the system will automatically push the notice to customers and relevant logistics parties after release.More importantly,we establish an independent customs declaration file library for each customer,all documents handled by us are scanned and archived electronically and stored for a long time.When Ms.Hao needs to handle export tax refund,we can quickly call up the complete set of documents for the business,ensure that the documents are complete and the information is consistent,and provide clear and reliable voucher support for her financial department.

## Customs Declaration Strategy Selection Under Different Trade Modes

The diversity of import and export activities determines that customs declaration is not a single mode.Choosing a customs declaration method that matches the nature of the business is the premise of compliance and efficiency.In 2026,with the maturity of new business formats such as cross-border e-commerce and market procurement,the customs supervision mode is also more segmented.

| Customs Declaration Method | Applicable Scenarios | Core Features and Requirements | Common Risk Points |
| --- | --- | --- | --- |
| General Trade Customs Declaration | The most common import and export of traded goods,with complete purchase and sales contracts. | Full set of commercial documents and customs declaration form are required,tariffs and value-added tax are paid according to law,and export tax refund can be applied for. | Commodity classification,price declaration and regulatory documents are the main risk areas. |
| Cross-border E-commerce Customs Declaration | Retail import and export of goods through e-commerce platforms,such as B2C direct mail and bonded stock preparation. | Adopt the mode of list verification & release and consolidated declaration,enjoy personal item postal tax or cross-border e-commerce comprehensive tax. | Commodity name and quantity declaration,personal quota management,return processing into the bonded area. |
| Processing Trade Customs Declaration | Bonded businesses such as processing with supplied materials and processing with imported materials. | Raw materials are bonded upon import,processing trade manuals or account books are required,and verification management is implemented. | Inaccurate unit consumption management,delayed supplementary tax payment for domestic sales,improper disposal of leftover materials. |
| Temporary Import and Export | Temporary import and export of goods for exhibition,testing,construction and other purposes. | Guarantee is required,goods shall be re-transported in and out in original status within the specified time limit,and tax can be exempted. | Failure to re-transport beyond the time limit,change of goods status,insufficient guarantee amount. |

In long-term service,Zhongshen has accumulated rich experience in handling various trade modes.We not only help enterprises complete daily general trade customs declaration,but also plan manual establishment and verification schemes for Ms.Shen engaged in processing trade,design compliant logistics and declaration links for Mr.He engaged in cross-border e-commerce,ensuring that enterprises can not only enjoy policy convenience under new business formats,but also strictly adhere to the compliance bottom line.

What runs through all the above stages is actually the control of details,reverence for rules and prediction of risks.Customs declaration work consists of countless trivial but critical steps,and negligence in any link may make all previous efforts in vain.With more than 20 years of focus,Zhongshen has transformed this complex and dynamic process into a stable,predictable and standardized service.We are not just declaration fillers,but also customs affairs consultants for enterprises.With professional knowledge and experience,we pave the way for the cross-border flow of goods,allowing enterprises to focus more on the market and products themselves.When you entrust customs declaration affairs to us,you essentially purchase certainty and risk protection.

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